Nut



May 29 1951 B. F. KlEsEL 2,555,090

NUT

Filed sept. 3, 194s .INI/ENTOR. BERNHARD F. KIESEL Patented May 29,1951

NUT e Bernhard F. Klesel, Detroit,` Mich., assigner of one-hall.' to Bertha K. Kiesel Application september s, 194s,seria1No. 694,463

The present invention relates to nuts, and more particularly to a composite nut structure adapted preassembly with a part, particularly a ,sheet-f 9 claims. '(01, isi-ss) metal part, so that the nut is firmly retairieiagainst 'displacement from .the part or rotation relative thereto.

It is a further object of the present invention to provide a nut adapted for preassemblylwith a part which when the associated bolt is threaded thereinto and drawn up tight, cooperates-with the stock of the part to form a permanent iin l lock therewith. It is a further object of the pre ent invention to provide. a nut designed forrprer 4 assembly with apertured stock which is provided with a sealing plate effective to close and seal the aperture in the stock. A further object of theinvention is to provide a nut for preassembly with apertured stock characterized by its economyA of production and the ease and simplicity with which it may be assembled to the part.

` Other objects and features of the invention will.

become apparent as the description proceeds,

especially when taken in conjunction with the accompanying drawings, wherein: Figure 1 is a plan view of a nut and bolt assembled with apertured body stock; l y Figure 2 is a view similar to Figure 1 with the bolt head removed and parts broken away to expose the detailed construction; .A

Figure 3 is an exploded view of the parts illustrated in assembled position in Figure 1;

Figure 4 is a section through the assembly illustrating the relationship between the nut, th bolt, and two pieces of sheet stock; p -l jV Figure 5 is a sectional view similar to Figure `l taken along a line radially displaced from the axisof the bolt;

Figure 6 is a diagrammatic view illustrating the relationship of interlocking tangs prior to tightening of the bolt; 1

Figure 7 is a view similar to Figure 6 illustrating the deformation of the tangs resulting from tightening of the bolt; i

Figure 8 is an exploded view of parts illustrating a somewhat different modification;

Figure 9 is an axial section through an assembly of the parts illustrated in Figure 8; and- Figure 10 is a bottom plan view of the assembly illustrated in Figure 9 on a reduced scale.v Referring rst to the embodiment of themvention illustrated in Figures 1 through '1, there is` illustrated a nut assembly ,Ill which comprises a plate II secured to one face of a conventional nut I2. The plate II and nut I2 may be assembled by welding, staking or the like. As best seen in Figure 3, the plate II has a plurality of cut-out portions I3 forming tangs I4 which project upwardly from the plane of the plate I I and which preferably are shaped with a curved length as illustrated so as to provide frictional engagement with their associated part. Intermediate the cut-out portions which provide the tangs I4, the material of the plate projects inwardly in its own plane to provideradial shoulders I5.

Preferably the cut-out portions I3 are proportioned so that they underlie portions of the nut I2, with the result that in the completed nut assembly the plate is imperforate outwardly from the nut, for a purpose which will presently appear.

In use the nut assembly I0 is adapted to be preassembled with apertured stock 2U which may be sheet metal and which has the aperture therein shaped to provide a plurality of radially inwardly extending tangs 2| adapted to cooperate with tangs I4 of the nut assembly. Tangs 2I terminate inwardly to define a central bolt receiving opening 22. At 3B in Figure 3 is illustrated a conventional bolt which is adapted to thread into the nut I2 so as to assemble the apertured plate 20 with a second plate such as the lplate 40 in Figure 4 which is provided with a round opening of suflicient size to permit passage of the threaded shank of the bolt 30.

It will be apparent that the nut assembly I0 may be assembled with the apertured plate 20 simply by introducing the bent tangs I4 through the spaces between the tangs 2i and thereafter rotating the nut assembly so as to cause the tangs I4 to overlie the tangs 2I. Further rotation of the nut assembly I0 will be prevented by engagement between the xed end of the tangs I4 with the edges of the tangs 2|, and due to the frictional engagement resulting from the curved or bent conformation of the tangs I4, the nut assembly I0 is retained against accidental displacement from the apertured vplate 20. In practice the assembly is completed by passing the bolt 30 through a suitably formed opening in the plate 40 and thereafter engaging the bolt 30 with the nut I2. It will be appreciated that the present invention nds its greatest eld of utility in assembling parts in which the nut is located at the interior of a hollow part or in a position where ready access thereto is not to be had. Furthertured plate 20 is illustrated as underlying a tang'l |13 of the plate and as occupying a position The relative above the plane of the plate circumferential extent of the tang'slll and' 2|- is such that in assembled position the-tang 2| is completely overlain by the tang ,M anddoes not itself overlie the portion I5 of the plate 4 10, extend upwardly and lie along the side of the nut 80. The flanges 88 are bent over the opposite face of the nut as indicated at 89 in Figure 10. This provides a cage which receives the nut 88 and retains it relatively loosely therein but which is nevertheless effective to prevent rotation of the nut 80 relative to its cage.

The nut assembly is designed for assembly with apertured sheet stock 90 which has a plurality of radially inwardly extending tangs 9| which are initially coplanar therewith. At 92 is illustrated a portion of a second part preferv.ably of sheet stock having a circular opening 93 adapted to freely receive the threaded shank '82 ofthe bolt 83.*'

It willbe appreciated that the nut assembly ispreassembled. with the body stock 98 by in- Accordingly, when clamping pressure is yexertedY between the parts by moving the bolt 38 into the nut l2 the parts assume thev position shown in Figure 7, which illustrates the tang 2| as bent downwardly into the plane of the plate so as to lie `between a pair of the inwardly projecting portions l5. It will be appreciated that with the parts in the relative position shown in Figure 7, it will be impossible to withdraw the nut assembly l from the plate 20 except byA forcing the tangs 2| upward beyond the plane of the plate This construction renders the nutv assembly substantially permanent'with thelapertured stock 20. Ordinarily the vparts being as-l sembled are cold rolled stock so that when the parts have been caused to assume the relative position shown in Figure '7 a permanent deformation has been imparted thereto. f While in Figures 6 and '7 there 'is illustrated an arangement in which the tang 2| is completely overlain by the tang I4, it will be appreciated that a substantially equivalent result will be obtained even though the tang 2l is of a width so that in assembled position it continues to overlie a portion of the inwardly project-- ing part l of the apertured stock. In this case the entire extent of the tang 2| is not bent downwardly into the plane of the plate lbut a portion of it underlying the tang I4 will be bent downwardly with substantially the same result.`

It will be appreciated from Figure '3 that the opening in the apertured body stock 2U is substantially larger than the threaded shank of the bolt in order to provide the radially inwardly extending tangs 2|. It is desirable in the assembled structure to provide a seal for this opening 'and the plate is adapted to perform thisfunction. It is for this reason that the'plate l, outwardly from the nut |2, is imperforate and in the assembled structure this plate forms a seal which prevents leakage around the nut and bolt assembly. As best seen in Figure 3, the cutout portions |3 and the tangs I4 are therefore proportioned to lie within the boundary of the square nut |2. Referring now to Figures 8 to 10, a similar construction is provided. As best seen in Figure 8, the assembly comprises a square nut 89"having the usual central threaded opening 8| for receiving the threaded shank 82 of a bolt 83. The nut 89 has secured adjacent one face thereof a plate 3d which has cut-out portions providing offset tangs 85 separated by intermediateradially inwardly extending portions 86 copl'anar with the plate 94. In this case the plate 84 is held as-i sembled with the nut 8ll by a plurality of flanges 8l and 88. The flanges 81, asbest seen in Figure troducing the tangs into the spaces between the tangs 9| of the body stock and thereafter a slight rotation of the nut assembly causes the tangs 85 and 9| to interlock. Preferably the relative circumferential extent of the flanges 85 and tllis such that in the assembly the tang 9| is completely overlain by the tang 85. This permits downward displacement of the tang 9| into the plane of the plate 84 by pressure applied thereto by the tang 85, all as well illustrated in Figure 9. vIt will be appreciated that Figure 9, like Figure 7, is an idealized view and that in practice the tang 9| may not be deformed completely into the plane of the plate 84. It will, however, be'moved downwardly so as to occupy a portion'4 of the .space intermediate the coplanar portions 86 of the plate 84 and will therefore be effective' to prevent removal of the nut assembly from the apertured 'plate stock.

l' In `this modification of the invention the cut outportions which provide the tangs 85 are preferably located'so that they are covered by thc nut 88 and the-nut assembly is therefore effective to provide a seal for the aperture formed in the bo'dy stock 98.

While there is illustrated and described in considerable detail two preferred embodiments of nuts adapted for preassembly with sheet body stock, itwill be appreciated that this full disclosure has been made solely to enable those skilled in the art to--practice the invention, the scope of which is indicated by the appended claims. v

What I claim as my invention is:

1. For use with a flat part having an enlarged opening provided with a plurality of radially inwardly projecting tangs which are initially coplanarw'ith said part and which terminate inwardly of said opening so as to define a bolt receiving hole therethrough: a'nut adapted to be interlocked with said part, said nut provided with a sheet metal plate having a bolt receiving opening and a plurality of circumferentially extending tangs at the side of said opening bent outwardly from the plane of said plate and engageable over theinwardly projecting tangs of said part, the relative circumferential extent of said tangs being such that in assembled position the inwardly projecting tangs of said part are completely covered by the tangs of said plate.

2. For use with a flat part having an enlarged opening provided with a' plurality of radially inwardly'projecting tangs which are initially coplanar with said part and which terminate inwardly of said'opening so as to-d'ene a bolt receiving hole therethrough: a nut adapted to be interlocked.with saidlp'art, said nut provided with asheetf'metal plate-having 'afbolt' receiving opening and a plurality of circumferentially extending tangs at the side of said opening bent outwardly from the plane of said plate and engage-- able over the inwardly projecting tangs oi said part, said plate being uninterrupted outwardly ci said nut so as to provide a seal for the opening formed in said part.

3. For use with a dat part having an enlarged opening provided with a plurality of radially in wardly projecting tangs which are initially coplanar with said part and which terminate inwardly of said opening so as to define a bolt receiving hole therethrough: a nut adapted to be interlocked with said part, said nut provided with a sheet metal plate having a bolt receiving opening and a plurality of circumferentially extending tangs at the side of said opening bent outwardly from the plane of said plate and engageable over the inwardly projecting tangs of said part, said plate being permanently secured to one face of said nut, extending laterally therefrom, and being imperforate outwardly therefrom to provide a seal for the opening in said part.

4. In combination, a at part having an enlarged opening provided with a plurality of radially inwardly projecting tangs which are initially coplanar with said part and which terminate inwardly of said opening so as to define a bolt receiving hole therethrough, a nut adapted to be interlocked with said part, said nut provided with a sheet metal plate having a bolt receiving opening and a plurality of circumferentially extending tangs at the side of said opening bent outwardly from the plane of said plate and engageable over the inwardly projecting tangs of said part, the relative circumferential extent of said tangs being such that in assembled position the inwardly projecting tangs of said part are completely covered by the tangs of said plate.

5. A nut for preassembly with a part having a bolt-receiving aperture and a plurality of radially inwardly extending tangs therein comprising: a nut body having a threaded opening therethrough, an assembly plate for mounting said nut L.

to the part with the threaded opening in said nut aligned with the bolt-receiving aperture in the part, a bolt-receiving opening in said assembly plate having a plurality of attaching tangs at the side of the opening therein shaped to inter- I lock with the tangs on the part, the bolt-receiving opening in said plate being located entirely within the sides of said nut body, said plate being shaped to engage the surface of said part continuously around the bolt-receiving opening in i the part in sealing relation thereto.

6. A nut for preassembly with a flat part having a bolt-receiving opening therein provided with a plurality of tangs extending radially inwardly from the sides of said opening comprising: a nut body, an assembly plate carried by\ said nut body, said plate having a bolt-receiving opening, a plurality of assembly tangs on said plate at the sides of said opening, said tangs projecting outwardly from said plate along radial lines to provide radial shoulders, and extending circumferentially of the opening from said shoulders in position to completely overlie the tangs in the flat part upon rotation of said nut after insertion of the tangs of said plate into the spaces between the tangs of said flat part.

7. In combination, a flat part having an enlarged opening provided with a plurality of radially inwardly projecting tangs which are initially coplanar with said part and which terminate inwardly of said opening so as to define a bolt receiving hole therethrough, a nut adapted to be interlocked with said part, said nut provided with a sheet metal plate having a bolt receiving opening and a plurality of circumferentially extending tangs at the side of said opening bent outwardly from the plane of said plate and engageable over the inwardly projecting tangs of said part, said plate being uninterrupted outwardly of said nut so as to provide a seal for the opening formed in said part.

8, In combination, a iiat part having an enlarged opening provided with a plurality of radially inwardly projecting tangs which are initially coplanar with said part and which terminate inwardly of said opening so as to deiine a bolt receiving hole therethrough, a nut adapted to be interlocked with said part, said nut provided with a sheet metal plate having a bolt receiving opening and a plurality of circumferentially extending tangs at the side of said opening bent outwardly from the plane of said plate and engageable over the inwardly projecting tangs of said part, said plate being permanently secured to one face oi said nut, extending laterally therefrom, and being imperforate outwardly therefrom to provide a seal for the opening in said part.

9. A connection between an apertured nien ber and a metal panel comprising a nut having a plate secured thereto, said plate having a bolt receiving opening and a plurality7 of arcuate tangs cut out from the material surrounding the opening and joined at one end to said plate, said panel having an opening including a plurality of radially inwardly extending tangs, said plate being in surface-to-surface abutment with said panel, said arcuate tangs completely overlying beneath said arcuate tangs, the cutout portions of said plate lying within the periphery of said nut to form a seal therewith.

BERNHARD F. KIESEL.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,062,635 Clements May 27, 1913 2,233,242 Burke Feb. 25, 1941 2,282,360 Horrocks l May 12, 1942 2,398,374 Hartman Apr. 16, 1946 2,404,372 Hallock July 23, 1946 

